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bot_navigate.cpp
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//
// JK_Botti - be more human!
//
// bot_navigate.cpp
//
#ifndef _WIN32
#include <cstring>
#endif
#include <extdll.h>
#include <dllapi.h>
#include <h_export.h>
#include <meta_api.h>
#include "bot.h"
#include "bot_func.h"
#include "bot_weapons.h"
#include "waypoint.h"
#include "bot_skill.h"
#include "bot_weapons.h"
#include "bot_sound.h"
#include <cmath>
extern WAYPOINT waypoints[MAX_WAYPOINTS];
extern int num_waypoints; // number of waypoints currently in use
extern qboolean is_team_play;
extern qboolean checked_teamplay;
extern bot_weapon_t weapon_defs[MAX_WEAPONS];
// SET THIS UP BASED ON MOD!!!
const int max_drop_height = 800;
// returns the number of degrees left to turn toward ideal pitch...
float BotChangePitch(const bot_t& pBot, float speed)
{
edict_t *pEdict = pBot.pEdict;
float current_180; // current +/- 180 degrees
// turn from the current v_angle pitch to the idealpitch by selecting
// the quickest way to turn to face that direction
float current = pEdict->v.v_angle.x;
const float ideal = pEdict->v.idealpitch;
// find the difference in the current and ideal angle
const float diff = std::fabs(current - ideal);
speed = speed * pBot.f_frame_time; // angles per second
// check if difference is less than the max degrees per turn
if (diff < speed)
speed = diff; // just need to turn a little bit (less than max)
// here we have four cases, both angle positive, one positive and
// the other negative, one negative and the other positive, or
// both negative. handle each case separately...
if ((current >= 0) && (ideal >= 0)) // both positive
{
if (current > ideal)
current -= speed;
else
current += speed;
}
else if ((current >= 0) && (ideal < 0))
{
current_180 = current - 180;
if (current_180 > ideal)
current += speed;
else
current -= speed;
}
else if ((current < 0) && (ideal >= 0))
{
current_180 = current + 180;
if (current_180 > ideal)
current += speed;
else
current -= speed;
}
else // (current < 0) && (ideal < 0) both negative
{
if (current > ideal)
current -= speed;
else
current += speed;
}
// check for wrap around of angle...
if (current > 180)
current -= 360;
if (current < -180)
current += 360;
pEdict->v.v_angle.x = current;
return diff; // return number of degrees left to turn
}
// returns the number of degrees left to turn toward ideal yaw...
float BotChangeYaw(const bot_t& pBot, float speed)
{
edict_t *pEdict = pBot.pEdict;
float current_180; // current +/- 180 degrees
// turn from the current v_angle yaw to the ideal_yaw by selecting
// the quickest way to turn to face that direction
float current = pEdict->v.v_angle.y;
const float ideal = pEdict->v.ideal_yaw;
// find the difference in the current and ideal angle
const float diff = std::fabs(current - ideal);
// speed that we can turn during this frame...
speed = speed * pBot.f_frame_time;
// check if difference is less than the max degrees per turn
if (diff < speed)
speed = diff; // just need to turn a little bit (less than max)
// here we have four cases, both angle positive, one positive and
// the other negative, one negative and the other positive, or
// both negative. handle each case separately...
if ((current >= 0) && (ideal >= 0)) // both positive
{
if (current > ideal)
current -= speed;
else
current += speed;
}
else if ((current >= 0) && (ideal < 0))
{
current_180 = current - 180;
if (current_180 > ideal)
current += speed;
else
current -= speed;
}
else if ((current < 0) && (ideal >= 0))
{
current_180 = current + 180;
if (current_180 > ideal)
current += speed;
else
current -= speed;
}
else // (current < 0) && (ideal < 0) both negative
{
if (current > ideal)
current -= speed;
else
current += speed;
}
// check for wrap around of angle...
if (current > 180)
current -= 360;
if (current < -180)
current += 360;
pEdict->v.v_angle.y = current;
return diff; // return number of degrees left to turn
}
static qboolean BotFindWaypoint( bot_t &pBot )
{
int index;
int path_index = -1;
float min_distance[3];
int min_index[3];
const edict_t *pEdict = pBot.pEdict;
for (index=0; index < 3; index++)
{
min_distance[index] = 99999.0f;
min_index[index] = -1;
}
index = WaypointFindPath(path_index, pBot.curr_waypoint_index);
while (index != -1)
{
// if index is not a current or recent previous waypoint...
if ((index != pBot.curr_waypoint_index) &&
(index != pBot.prev_waypoint_index[0]) &&
(index != pBot.prev_waypoint_index[1]) &&
(index != pBot.prev_waypoint_index[2]) &&
(index != pBot.prev_waypoint_index[3]) &&
(index != pBot.prev_waypoint_index[4]))
{
// find the distance from the bot to this waypoint
const float distance = (pEdict->v.origin - waypoints[index].origin).Length();
if (distance < min_distance[0])
{
min_distance[2] = min_distance[1];
min_index[2] = min_index[1];
min_distance[1] = min_distance[0];
min_index[1] = min_index[0];
min_distance[0] = distance;
min_index[0] = index;
}
else if (distance < min_distance [1])
{
min_distance[2] = min_distance[1];
min_index[2] = min_index[1];
min_distance[1] = distance;
min_index[1] = index;
}
else if (distance < min_distance[2])
{
min_distance[2] = distance;
min_index[2] = index;
}
}
// find the next path to a waypoint
index = WaypointFindPath(path_index, pBot.curr_waypoint_index);
}
int select_index;
// about 20% of the time choose a waypoint at random
// (don't do this any more often than every 10 seconds)
if ((RANDOM_LONG2(1, 100) <= 20) &&
(pBot.f_random_waypoint_time <= gpGlobals->time))
{
pBot.f_random_waypoint_time = gpGlobals->time + 10.0f;
if (min_index[2] != -1)
index = RANDOM_LONG2(0, 2);
else if (min_index[1] != -1)
index = RANDOM_LONG2(0, 1);
else if (min_index[0] != -1)
index = 0;
else
return FALSE; // no waypoints found!
select_index = min_index[index];
}
else
{
// use the closest waypoint that has been recently used
select_index = min_index[0];
}
if (select_index != -1) // was a waypoint found?
{
pBot.prev_waypoint_index[4] = pBot.prev_waypoint_index[3];
pBot.prev_waypoint_index[3] = pBot.prev_waypoint_index[2];
pBot.prev_waypoint_index[2] = pBot.prev_waypoint_index[1];
pBot.prev_waypoint_index[1] = pBot.prev_waypoint_index[0];
pBot.prev_waypoint_index[0] = pBot.curr_waypoint_index;
pBot.curr_waypoint_index = select_index;
pBot.waypoint_origin = waypoints[select_index].origin;
pBot.f_waypoint_time = gpGlobals->time;
return TRUE;
}
return FALSE; // couldn't find a waypoint
}
static void BotEvaluateGoal( bot_t &pBot )
{
const edict_t *pEdict = pBot.pEdict;
// we're dying! Forget about our goal
if (pBot.waypoint_goal != -1 && pEdict->v.health <= 25 && pBot.wpt_goal_type != WPT_GOAL_HEALTH)
{
//if(pBot.waypoint_goal != -1)
// UTIL_ConsolePrintf("[%s] Dying, forget goal: %d -> %d", pBot.name, pBot.waypoint_goal, -1);
pBot.f_waypoint_goal_time = 0;
pBot.waypoint_goal = -1;
}
}
//
static int BotGetSoundWaypoint( bot_t &pBot, edict_t *pTrackSoundEdict, edict_t ** pNewTrackSoundEdict )
{
edict_t *pEdict = pBot.pEdict;
int index = -1;
CSound *pCurrentSound;
edict_t *pMinDistanceEdict = nullptr;
float mindistance = WAYPOINT_UNREACHABLE;
// walk through active sound linked list
for(int iSound = CSoundEnt::ActiveList(); iSound != SOUNDLIST_EMPTY; iSound = pCurrentSound->m_iNext)
{
pCurrentSound = CSoundEnt::SoundPointerForIndex( iSound );
if(!pCurrentSound)
continue;
// ignore sounds created by bot itself
if(pCurrentSound->m_iBotOwner == (&pBot - &bots[0]))
continue;
// we want specific waypoint?
if(!FNullEnt(pTrackSoundEdict) && pCurrentSound->m_pEdict != pTrackSoundEdict)
continue;
// is sound too far away? (bot cannot hear)
const float s_distance = (pCurrentSound->m_vecOrigin - pEdict->v.origin).Length();
if(s_distance > pCurrentSound->m_iVolume * skill_settings[pBot.bot_skill].hearing_sensitivity)
continue;
const int temp_index = WaypointFindNearest(pCurrentSound->m_vecOrigin, pEdict, REACHABLE_RANGE, TRUE);
// get distance
if (temp_index > -1 && temp_index < num_waypoints)
{
float distance;
// use alternative way in case bot doesn't have current waypoint
if(pBot.curr_waypoint_index == -1)
distance = (pEdict->v.origin - waypoints[temp_index].origin).Length();
else
distance = WaypointDistanceFromTo(pBot.curr_waypoint_index, temp_index);
if (distance < mindistance)
{
mindistance = distance;
index = temp_index;
pMinDistanceEdict = FNullEnt(pCurrentSound->m_pEdict)? nullptr:pCurrentSound->m_pEdict;
}
}
}
if(pNewTrackSoundEdict)
*pNewTrackSoundEdict = pMinDistanceEdict;
return index;
}
//
qboolean BotUpdateTrackSoundGoal( bot_t &pBot )
{
if(pBot.wpt_goal_type != WPT_GOAL_TRACK_SOUND)
return FALSE;
// check track-sound-time if we should stop tracking
// check if target has been erased
// check our state -> do we want to keep tracking
if((pBot.f_track_sound_time <= 0.0f && pBot.f_track_sound_time < gpGlobals->time) ||
!pBot.b_has_enough_ammo_for_good_weapon || pBot.b_low_health)
{
if(pBot.waypoint_goal != -1)
{
//if(!pBot.b_has_enough_ammo_for_good_weapon || pBot.b_low_health)
// UTIL_ConsolePrintf("[%s] Dropped sound tracking goal because(%d -> %d): out of ammo/health", pBot.name, pBot.waypoint_goal, -1);
//if(pBot.f_track_sound_time <= 0.0f && pBot.f_track_sound_time < gpGlobals->time)
// UTIL_ConsolePrintf("[%s] Dropped sound tracking goal because(%d -> %d): end of tracking time", pBot.name, pBot.waypoint_goal, -1);
}
pBot.waypoint_goal = -1;
pBot.wpt_goal_type = WPT_GOAL_NONE;
pBot.pTrackSoundEdict = nullptr;
pBot.f_track_sound_time = -1;
return FALSE;
}
// get waypoint close to sound of track-sound-edict
edict_t* pNew = nullptr;
const int waypoint = BotGetSoundWaypoint( pBot, pBot.pTrackSoundEdict, &pNew );
if(FNullEnt(pBot.pTrackSoundEdict) && !FNullEnt(pNew))
pBot.pTrackSoundEdict = pNew;
// update waypoint_goal
//if(pBot.waypoint_goal != waypoint)
// UTIL_ConsolePrintf("[%s] Updated sound tracking goal waypoint: %d -> %d", pBot.name, pBot.waypoint_goal, waypoint);
pBot.waypoint_goal = waypoint;
return TRUE;
}
static void BotFindWaypointGoal( bot_t &pBot )
{
int index = -1;
edict_t *pEdict = pBot.pEdict;
const bot_weapon_select_t *pSelect = &weapon_select[0];
if (pEdict->v.health * RANDOM_FLOAT2(0.9f, 1.0f/0.9f) < VALVE_MAX_NORMAL_HEALTH * 0.25f)
{
// look for health if we're pretty dead
index = WaypointFindNearestGoal(pEdict, pBot.curr_waypoint_index, W_FL_HEALTH);
if(index == -1)
index = WaypointFindRandomGoal(pEdict, W_FL_HEALTH);
if (index != -1)
{
pBot.wpt_goal_type = WPT_GOAL_HEALTH;
pBot.waypoint_goal = index;
}
goto exit;
}
if (pBot.pBotEnemy == nullptr)
{
int goal_type = 0;
int ammoflags;
int weaponflags;
float mindistance = WAYPOINT_UNREACHABLE;
edict_t* pTrackSoundEdict = nullptr;
// only if not engaging
// find these if have good weapon and no low health
if(!pBot.b_low_health && pBot.b_has_enough_ammo_for_good_weapon)
{
// find nearest interesting sound that isn't visible
const int temp_index = BotGetSoundWaypoint(pBot, nullptr, &pTrackSoundEdict);
if(temp_index != -1)
{
if(RANDOM_FLOAT2(0.0f, 1.0f) < 0.5f)
{
const float track_time = RANDOM_FLOAT2(skill_settings[pBot.bot_skill].track_sound_time_min, skill_settings[pBot.bot_skill].track_sound_time_max);
// don't try get other objects
pBot.wpt_goal_type = WPT_GOAL_TRACK_SOUND;
pBot.waypoint_goal = temp_index;
pBot.pTrackSoundEdict = pTrackSoundEdict;
pBot.f_track_sound_time = gpGlobals->time + track_time;
index = temp_index;
goto exit;
}
else
{
const float distance = WaypointDistanceFromTo(pBot.curr_waypoint_index, temp_index);
if (distance < mindistance)
{
mindistance = distance;
index = temp_index;
goal_type = WPT_GOAL_TRACK_SOUND;
}
}
}
// want health?
if (pEdict->v.health < VALVE_MAX_NORMAL_HEALTH * 0.95)
{
// find nearest health
int temp_index = WaypointFindNearestGoal(pEdict, pBot.curr_waypoint_index, W_FL_HEALTH, pBot.exclude_points);
if(temp_index == -1)
temp_index = WaypointFindRandomGoal(pEdict, W_FL_HEALTH, pBot.exclude_points);
// get distance
if (temp_index > -1 && temp_index < num_waypoints)
{
const float distance = WaypointDistanceFromTo(pBot.curr_waypoint_index, temp_index);
if (distance < mindistance)
{
mindistance = distance;
index = temp_index;
goal_type = WPT_GOAL_HEALTH;
}
}
}
// want health?
if (pEdict->v.armorvalue < VALVE_MAX_NORMAL_BATTERY * 0.95)
{
// find nearest armor
int temp_index = WaypointFindNearestGoal(pEdict, pBot.curr_waypoint_index, W_FL_ARMOR, pBot.exclude_points);
if(temp_index == -1)
temp_index = WaypointFindRandomGoal(pEdict, W_FL_ARMOR, pBot.exclude_points);
// get distance
if (temp_index > -1 && temp_index < num_waypoints)
{
const float distance = WaypointDistanceFromTo(pBot.curr_waypoint_index, temp_index);
if (distance < mindistance)
{
mindistance = distance;
index = temp_index;
goal_type = WPT_GOAL_ARMOR;
}
}
}
}
if (!pBot.b_longjump && skill_settings[pBot.bot_skill].can_longjump)
{
// find a longjump module
int temp_index = WaypointFindNearestGoal(pEdict, pBot.curr_waypoint_index, W_FL_LONGJUMP, pBot.exclude_points);
if(temp_index == -1)
temp_index = WaypointFindRandomGoal(pEdict, W_FL_LONGJUMP, pBot.exclude_points);
// get distance
if (temp_index > -1 && temp_index < num_waypoints)
{
const float distance = WaypointDistanceFromTo(pBot.curr_waypoint_index, temp_index);
if (distance < mindistance)
{
mindistance = distance;
index = temp_index;
goal_type = WPT_GOAL_ITEM;
}
}
}
// find new weapon if only have shitty weapons or running out of ammo on all weapons
if (BotGetGoodWeaponCount(pBot, 1)==0 || !pBot.b_has_enough_ammo_for_good_weapon)
{
// find weapons that bot can use
int select_index = -1;
int weaponflags = 0;
// collect item flags of desired weapons
while(pSelect[++select_index].iId)
{
if(pSelect[select_index].avoid_this_gun)
continue;
if(!BotCanUseWeapon(pBot, pSelect[select_index]))
continue;
weaponflags |= pSelect[select_index].waypoint_flag;
}
if(weaponflags)
{
int temp_index = WaypointFindNearestGoal(pEdict, pBot.curr_waypoint_index, W_FL_WEAPON, weaponflags, pBot.exclude_points);
if(temp_index == -1)
temp_index = WaypointFindRandomGoal(pEdict, W_FL_WEAPON, weaponflags, pBot.exclude_points);
if (temp_index != -1)
{
const float distance = WaypointDistanceFromTo(pBot.curr_waypoint_index, temp_index);
if (distance < mindistance)
{
index = temp_index;
mindistance = distance;
goal_type = WPT_GOAL_WEAPON;
}
}
}
}
// get flags for ammo that are low, primarily ammo that can we can use with current weapons
else if (((ammoflags = BotGetLowAmmoFlags(pBot, &(weaponflags=0), TRUE)) != 0 && weaponflags != 0) ||
((ammoflags = BotGetLowAmmoFlags(pBot, &(weaponflags=0), FALSE)) != 0 && weaponflags != 0))
{
const int flags = (ammoflags ? W_FL_AMMO : 0) | (weaponflags ? W_FL_WEAPON : 0);
// find ammo for that we don't have enough yet
int temp_index = WaypointFindNearestGoal(pEdict, pBot.curr_waypoint_index, flags, ammoflags|weaponflags, pBot.exclude_points);
if(temp_index == -1)
temp_index = WaypointFindRandomGoal(pEdict, flags, ammoflags|weaponflags, pBot.exclude_points);
if (temp_index != -1)
{
const float distance = WaypointDistanceFromTo(pBot.curr_waypoint_index, temp_index);
if (distance < mindistance)
{
index = temp_index;
mindistance = distance;
goal_type = WPT_GOAL_AMMO;
}
}
}
if(index != -1)
{
pBot.wpt_goal_type = goal_type;
pBot.waypoint_goal = index;
if(goal_type != WPT_GOAL_TRACK_SOUND)
{
pBot.pTrackSoundEdict = nullptr;
pBot.f_track_sound_time = -1;
}
else
{
const float track_time = RANDOM_FLOAT2(skill_settings[pBot.bot_skill].track_sound_time_min, skill_settings[pBot.bot_skill].track_sound_time_max);
pBot.pTrackSoundEdict = pTrackSoundEdict;
pBot.f_track_sound_time = gpGlobals->time + track_time;
}
goto exit;
}
}
else if(!FNullEnt(pBot.pBotEnemy))
{
// find a waypoint near our enemy
index = WaypointFindNearest(pBot.pBotEnemy, 1024);
if (index != -1)
{
pBot.wpt_goal_type = WPT_GOAL_ENEMY;
pBot.waypoint_goal = index;
pBot.pTrackSoundEdict = nullptr;
pBot.f_track_sound_time = -1;
goto exit;
}
}
// we couldn't find ANYTHING, go somewhere random
if (index == -1)
{
index = WaypointFindRandomGoal(pEdict, 0);
if (index != -1)
{
pBot.wpt_goal_type = WPT_GOAL_LOCATION;
pBot.waypoint_goal = index;
pBot.pTrackSoundEdict = nullptr;
pBot.f_track_sound_time = -1;
goto exit;
}
}
exit:
if (index != -1)
{
#if 0
switch (pBot.wpt_goal_type)
{
case WPT_GOAL_HEALTH:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I am going for some health!\n");
break;
case WPT_GOAL_ARMOR:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I am going for some armor!\n");
break;
case WPT_GOAL_WEAPON:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I am going for a weapon!\n");
break;
case WPT_GOAL_AMMO:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I am going for some ammo!\n");
break;
case WPT_GOAL_ITEM:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I am going for an item!\n");
break;
case WPT_GOAL_TRACK_SOUND:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I am tracking a sound!\n");
break;
case WPT_GOAL_ENEMY:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I am tracking/engaging an enemy!\n");
break;
case WPT_GOAL_LOCATION:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I have a random location goal!\n");
break;
default:
UTIL_ConsolePrintf("[%s] %s", pBot.name, "I have an unknown goal!\n");
break;
}
#endif
}
}
qboolean BotHeadTowardWaypoint( bot_t &pBot )
{
int i;
TraceResult tr;
float waypoint_distance, min_distance;
qboolean touching;
edict_t *pEdict = pBot.pEdict;
// check if the bot has been trying to get to this waypoint for a while...
if ((pBot.f_waypoint_time + 5.0f) < gpGlobals->time)
{
pBot.curr_waypoint_index = -1; // forget about this waypoint
pBot.waypoint_goal = -1; // also forget about a goal
}
// no goal, no goal time
if ((pBot.waypoint_goal == -1) && (pBot.f_waypoint_goal_time > gpGlobals->time + 2.0f) &&
(pBot.f_waypoint_goal_time != 0.0f))
pBot.f_waypoint_goal_time = 0.0f;
// find new waypoint for sound we are tracking
if(pBot.wpt_goal_type == WPT_GOAL_TRACK_SOUND)
{
BotUpdateTrackSoundGoal(pBot);
}
// check if we need to find a waypoint...
if (pBot.curr_waypoint_index == -1)
{
pBot.waypoint_top_of_ladder = FALSE;
// did we just come off of a ladder or are we underwater?
if (((pBot.f_end_use_ladder_time + 2.0f) > gpGlobals->time) || pBot.b_in_water)
{
// find the nearest visible waypoint
i = WaypointFindNearest(pEdict, REACHABLE_RANGE);
}
else
{
// find the nearest reachable waypoint
i = WaypointFindReachable(pEdict, REACHABLE_RANGE);
}
if (i == -1)
{
pBot.curr_waypoint_index = -1;
return FALSE;
}
pBot.curr_waypoint_index = i;
pBot.waypoint_origin = waypoints[i].origin;
pBot.f_waypoint_time = gpGlobals->time;
}
else
{
if(pBot.b_longjump && skill_settings[pBot.bot_skill].can_longjump)
{
Vector vecToWpt = waypoints[pBot.curr_waypoint_index].origin - pEdict->v.origin;
float max_lj_distance = LONGJUMP_DISTANCE * (800 / CVAR_GET_FLOAT("sv_gravity"));
// longjump toward the waypoint
// we have to be out of water, on the ground, able to longjump, far enough away to longjump, and
// facing pretty close to the waypoint
if(!pBot.b_in_water && pBot.b_on_ground && !pBot.b_ducking && !pBot.b_on_ladder &&
vecToWpt.Length() >= max_lj_distance * 0.6 &&
pEdict->v.velocity.Length() > 50 &&
DotProduct(UTIL_AnglesToForward(pEdict->v.v_angle), vecToWpt.Normalize()) > cos(deg2rad(10)))
{
// trace a hull toward the current waypoint the distance of a longjump (depending on gravity)
UTIL_TraceHull(
UTIL_GetOrigin(pEdict),
UTIL_GetOrigin(pEdict) + vecToWpt.Normalize() * max_lj_distance,
dont_ignore_monsters, head_hull, pEdict, &tr
);
// make sure it's clear
if (tr.flFraction > 0.999999f)
{
// trace another hull straight down so we can get ground level here
UTIL_TraceHull(tr.vecEndPos, tr.vecEndPos - Vector(0,0,8192), dont_ignore_monsters, head_hull, pEdict, &tr);
// make sure the point we found is about level with
if (waypoints[pBot.curr_waypoint_index].origin.z - tr.vecEndPos.z < 52)
{
// actually do the longjump
pEdict->v.button |= IN_DUCK;
pBot.b_longjump_do_jump = TRUE;
// recognize we'll be in the air for a second most likely
pBot.f_longjump_time = gpGlobals->time + 1.0f;
//UTIL_ConsolePrintf("%s doing longjump! -- wp\n", STRING(pEdict->v.netname));
}
}
}
}
// skip this part if bot is trying to get out of water...
if (pBot.f_exit_water_time < gpGlobals->time)
{
Vector v_dest;
Vector v_src;
// check if we can still see our target waypoint...
v_src = pEdict->v.origin + pEdict->v.view_ofs;
v_dest = waypoints[pBot.curr_waypoint_index].origin;
// trace a line from bot's eyes to destination...
UTIL_TraceMove( v_src, v_dest, ignore_monsters,
pEdict->v.pContainingEntity, &tr );
// check if line of sight to object is blocked (i.e. not visible)
if (tr.flFraction < 1.0f)
{
// did we just come off of a ladder or are we under water?
if (((pBot.f_end_use_ladder_time + 2.0f) > gpGlobals->time) || pBot.b_in_water)
{
// find the nearest visible waypoint
i = WaypointFindNearest(pEdict, REACHABLE_RANGE);
}
else
{
// find the nearest reachable waypoint
i = WaypointFindReachable(pEdict, REACHABLE_RANGE);
}
if (i == -1)
{
pBot.curr_waypoint_index = -1;
return FALSE;
}
pBot.curr_waypoint_index = i;
pBot.waypoint_origin = waypoints[i].origin;
pBot.f_waypoint_time = gpGlobals->time;
}
}
}
// find the distance to the target waypoint
waypoint_distance = (pEdict->v.origin - pBot.waypoint_origin).Length();
// set the minimum distance from waypoint to be considered "touching" it
min_distance = 50.0f;
// if this is a crouch waypoint, bot must be fairly close...
if (waypoints[pBot.curr_waypoint_index].flags & W_FL_JUMP)
min_distance = 25.0f;
if (waypoints[pBot.curr_waypoint_index].flags & W_FL_CROUCH)
min_distance = 20.0f;
// if this is a ladder waypoint, bot must be fairly close to get on ladder
if (waypoints[pBot.curr_waypoint_index].flags & W_FL_LADDER)
min_distance = 20.0f;
// if this is a lift-start waypoint
if (waypoints[pBot.curr_waypoint_index].flags & W_FL_LIFT_START)
min_distance = 32.0f;
// if this is a lift-end waypoint, bot must be very close
if (waypoints[pBot.curr_waypoint_index].flags & W_FL_LIFT_END)
min_distance = 20.0f;
// if item waypoint, go close
if (waypoints[pBot.curr_waypoint_index].flags & (W_FL_LONGJUMP | W_FL_HEALTH | W_FL_ARMOR | W_FL_AMMO | W_FL_WEAPON))
min_distance = 20.0f;
// if trying to get out of water, need to get very close to waypoint...
if (pBot.f_exit_water_time >= gpGlobals->time)
min_distance = 20.0f;
touching = FALSE;
// did the bot run past the waypoint? (prevent the loop-the-loop problem)
if ((pBot.prev_waypoint_distance > 1.0f) &&
(waypoint_distance > pBot.prev_waypoint_distance))
touching = TRUE;
// are we close enough to a target waypoint...
if (waypoint_distance <= min_distance)
touching = TRUE;
// save current distance as previous
pBot.prev_waypoint_distance = waypoint_distance;
if (touching)
{
qboolean waypoint_found = FALSE;
pBot.prev_waypoint_distance = 0.0f;
// reeval our goal
BotEvaluateGoal( pBot );
// check if the waypoint is a door waypoint
if (waypoints[pBot.curr_waypoint_index].flags & W_FL_DOOR)
{
pBot.f_dont_avoid_wall_time = gpGlobals->time + 5.0f;
}
// check if the next waypoint is a jump waypoint...
if (waypoints[pBot.curr_waypoint_index].flags & W_FL_JUMP)
{
pEdict->v.button |= IN_JUMP; // jump here
}
// check if the bot has reached the goal waypoint...
if (pBot.curr_waypoint_index == pBot.waypoint_goal)
{
// if this waypoint has an item, make sure we get it
if (waypoints[pBot.waypoint_goal].flags & (W_FL_LONGJUMP| W_FL_HEALTH | W_FL_ARMOR | W_FL_AMMO | W_FL_WEAPON))
{
pBot.pBotPickupItem = WaypointFindItem(pBot.waypoint_goal);
pBot.f_find_item = gpGlobals->time + 0.2f;
pBot.f_last_item_found = gpGlobals->time;
}
if (pBot.pBotEnemy != nullptr)
pBot.f_waypoint_goal_time = gpGlobals->time + 0.25f;
else // a little delay time, since we'll touch the waypoint before we actually get what it has
pBot.f_waypoint_goal_time = gpGlobals->time + 0.25f;
// don't pick same object too often
if(pBot.wpt_goal_type == WPT_GOAL_HEALTH ||
pBot.wpt_goal_type == WPT_GOAL_ARMOR ||
pBot.wpt_goal_type == WPT_GOAL_WEAPON ||
pBot.wpt_goal_type == WPT_GOAL_AMMO ||
pBot.wpt_goal_type == WPT_GOAL_ITEM)
{
for(int i = EXCLUDE_POINTS_COUNT - 1; i > 0; i--)
pBot.exclude_points[i] = pBot.exclude_points[i-1];
pBot.exclude_points[0] = pBot.waypoint_goal;
}
//UTIL_ConsolePrintf("[%s] Reach goal: %d -> %d", pBot.name, pBot.waypoint_goal, -1);
pBot.waypoint_goal = -1; // forget this goal waypoint
pBot.wpt_goal_type = WPT_GOAL_NONE;
}
// test special case of bot underwater and close to surface...
if (pBot.b_in_water)
{
Vector v_src, v_dest;
//TraceResult tr;
// trace a line straight up 100 units...
v_src = pEdict->v.origin;
v_dest = v_src;
v_dest.z = v_dest.z + 100.0f;
// trace a line to destination...
UTIL_TraceMove( v_src, v_dest, ignore_monsters,
pEdict->v.pContainingEntity, &tr );
if (tr.flFraction > 0.999999f)
{
int contents;
// find out what the contents is of the end of the trace...
contents = POINT_CONTENTS( tr.vecEndPos );
// check if the trace endpoint is in open space...
if (contents == CONTENTS_EMPTY)
{
// find the nearest visible waypoint
i = WaypointFindNearest(tr.vecEndPos, pEdict, 100);
if (i != -1)
{
waypoint_found = TRUE;
pBot.curr_waypoint_index = i;
pBot.waypoint_origin = waypoints[i].origin;
pBot.f_waypoint_time = gpGlobals->time;
// keep trying to exit water for next 3 seconds
pBot.f_exit_water_time = gpGlobals->time + 3.0f;
}
}
}
}
// if the bot doesn't have a goal waypoint then pick one...
if ((pBot.waypoint_goal == -1 || pBot.pBotEnemy != nullptr) &&
(pBot.f_waypoint_goal_time < gpGlobals->time))
{
// tracking something, pick goal much more often
if (pBot.pBotEnemy != nullptr)
pBot.f_waypoint_goal_time = gpGlobals->time + 0.5f;
else // don't pick a goal more often than every 120 seconds...
pBot.f_waypoint_goal_time = gpGlobals->time + 120.0f;
BotFindWaypointGoal(pBot);
}